Suction nozzle



March 18, 1941.

A. 1:. R085 SUCTION NOZZLE Fil ed July 11, 1959 val-lg INVENTOQR.

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Patented Mar. 18, 1941 SUCTION NOZZLE Adrian E. Ross, Stamford, Conn., assignor to Electrolux Corporation, New York, N. Y., a corpora tion of Delaware Application July 11, 1939, Serial No. 283,753

4 Claims.

My invention relates to suction nozzles and more particularly to a suction nozzle for use with a vacuum cleaner.

In the cleaning of upholstered furniture and the like, it is necessary to clean in confined spaces, such as, in corners, and crevices, and to clean curved and irregular surfaces. In cleaning under such conditions, it is often only possible to use a portion of the suction nozzle for cleaning a relatively small area. The use of only a portion of the suction nozzle would very greatly reduce the efliciency of the nozzle if not render it completely ineffective.

An object of my invention is to provide an improved suction nozzle which will efiiciently clean in confined spaces and on curved and irregular surfaces by using only a portion of the suction nozzle.

What I considerto be novel and my invention may be better understood by reference to the following specification, and appended claims when considered in connection with the accompanying drawing, in which- Fig. l is a top view of my improved'nozzle;

Fig. 2 is a sectional view taken along the line 2-2 of Fig. 1;

Fig. 3 is a bottom view; and

Fig. 4 is a sectional view taken along the line 4-4 of Fig. 1.

Referring to the drawing, in indicates a suction nozzle body having a relatively flat bottom contact surface II, and a projecting connector member l2 communicating with the hollow interior of body Ill. Connector I2 is adapted to receive a suction conduit connected to a vacuum cleaner, or other source of suction, for communication with the interior of the body Ill. An outer lip l3 which extends around the peripher-y of the bottom I I, and an inner lip l4 define between them a suction opening 15 communicating with the interior of body Ill. The bottom II is pointed at one end and diverges outwardly from the pointed end in a smooth curve.

The inner lip I4 is formed on a plate l6 secured to body- Ill by frictional engagement therewith, or by any securing means desired. As shown in the drawing, the plate I6 is secured to body ill by two arms l1 which'frictionally engage projecting walls IB, spaced from the outer walls along a portion of the side of body' In. The walls IS in addition to performing the function of securing the plate IE to the body l also serve as ballies to direct air entering the suction opening l remote from the pointed end, in a direction toward the pointed end in order to obtain communication with the interior of body l0 through a passage I9,'as indicated by the arrows in Fig. 2. The walls 18, acting as baiiles, serve to concentrate the suction, or air flow, at the pointed end of the bottom II for a purpose that 5 will be explained later.

At the end of bottom ll, remote from the pointed end, a passage 20 is formed communicating with the atmosphere at one end and with the suction opening l5 across the inner lip M. Thus, air entering the suction opening l5 can pass over the outer lip l3, or by entering through the passage 20 can pass over the inner lip M.

For loosening tenaciously adhering dog hairs, threads, and the like, a brush 2| is providedof U-shape which extends adjacent to the inner lip M. .The brush 2| is carried by arigging 22 having three arms 23, engaging the brush 2| at spaced points. Formed on the-end of rigging 22 is a finger grip 24 adjacent to a pivot pin 25 pivotally. securing the brush rigging 22 to body l0. By depressing the finger grip 24, the brush can be lowered into contact with a surface being engaged by the bottom 1 l. The brush 2| is urged to a retracted position by means of a torsion spring 26.

In the normal cleaning of upholstered furniture, the body III is connected to a source of suction and then with the bottom I l in contact with the surface being cleaned, it is moved back and forth over the surface. To clean in a confined space or a corner. of upholstered furniture, for example, the pointed end is inserted therein. As the air flow is concentrated at the pointed end by means of the baflies ill, the corner can be emciently cleaned. Due to the shape of the pointed end, it can be readily inserted in such a space.

In cleaning the arm of an upholstered chair or the like, the whole of the bottom ll cannot be placed in contact with a surface with an arched contour, but it is only necessary to place the pointed end of the bottom I l in engagement with the surface to be cleaned. The baiiies l8 prevent the free flow of air into the portion of the suction opening l5 not sealed in engagement with the surface being cleaned, and thus prevent the loss of suction at the pointed end of the bottom ll.

Even though air should enter relatively freely in the uncovered portion of the suction opening I5, it must pass into the portion of the suction opening adjacent to the pointed end to enter passage l9. This insures a large fiow of air over a relatively small area. It is not necessary to seal the suction opening across the outer lip I3 to obtain a sufllcientiy high suction, as in other forms of nozzles, because the result of the baiiies l8 directing the air to passage I! at the pointed venient to place the whole of bottom ll against a surface to be cleaned, the pointed end may be placed against or in proximity to an area of such a surface for cleaning it.

What I claim is: I

1, A suction nozzle including a body member having a base pointedat one end, a smooth lip extending from the pointed end along the periphery at opposite sides of said base, said base having a suction opening adjacent said lip, an inner lip extending from said base parallel to said first-named lip along the opposite side of said suction opening, said base having a passage communicating. withthe atmosphere remote from said pointed end and communicating with said suction opening across said inner lip, baffle members extending between said first-named lip and said inner lip to direct air entering portions of said suction opening to the pointed end of said base, and a connection member communicating with the interior of said body member.

2. A suction nozzle including a body member with a base having a flat contact surface pointed at one end and having a central chamber communicating through a passage in the base at said pointed end with a suction opening extending from the pointed end along both sides of the base, a smooth lip extending along the outside of said suction opening, an inner lip spaced inwardly from the plane of said first-named lip and extending from said base parallel to said firstnamed lip along the opposite side of said suction opening, said body member having .a passage adjacent said base communicating with the atmosphere at the end of the "base remote from said pointed end and with said suction opening across said inner lip, and a connection member communicating with said chamber.

3. A suction nozzle including a hollow body member having a flat contact surface pointed at one end with a suction opening extending from the pointed end. a smoothlip extending along the outside of said suction opening, an inner lip for said suction opening extending parallel to said first-named lip along the opposite side of said suction opening, a brush extending along and adjacent to said inner lip, said body member having a passage in the contact surface communicating with the atmosphere at the end of the contact surface-remote-from thc pointed end and with said suction opening across said inner lip, an arm connected to said brush extending through said passage, means pivotally connecting said arm to said body member, and spring means biasing said brush to a retracted position.

4. A suction nozzle including a hollow body member having a flat contact surface pointed at one end with a suction opening extending from the pointed end, a smooth lip extending along the outside of said suction opening, an innerlip for said suction opening extending parallel to said first-named lip along the opposite side of said suction opening, a brush extending along and adjacent to said inner lip, said body member having a passage in the contact surface communicating with the atmosphere at the end of the contact surface remote from the pointed-end and with said suction opening across said inner lip, an arm connected to said brush extending through said passage, pivot means for connecting said arm to said body member, spring means biasing said brush to a retracted position, and

-means to move said brush against the bias of said spring.

ADRIAN E. ROSS. 

